Avenged Sevenfold Help Main Characters ‘Carry On’ in ‘Call of Duty: Black Ops II’

Avenged Sevenfold are huge video game fans, so it was a no-brainer for the band when they were approached to do something special for the newly-released 'Call of Duty: Black Ops II' game. Not only did they contribute the song 'Carry On' to the soundtrack, the band -- in their animated form -- turn up at the end to perform the track with 'Black Ops'' two main characters.

Singer M. Shadows told USA Today, "They said they wanted the song to be uplifting and they wanted it to add some levity to the game." He adds, "[The game has] a very dark ending. They want you to have a certain feeling inside and they really wanted to have a feeling to uplift people at the end of the game and make you laugh."

The levity comes from the fact that the game's longtime adversaries, Raul Menendez and Sgt. Frank Woods, manage to put aside their differences to join the band during the performance. Shadows explains, "'Carry On' was more like these guys coming together at the end and being buddies after they have pretty much killed each others' families. I'm proud of it and I think it's fun and it's actually just really cool to be in a 'Call of Duty' game."

Of 'Carry On,' the vocalist says, "It was all about making a song that was up-tempo, something that had some cool little chord changes and key changes in there that gives the song a little bit of a life and we made it so the characters can rock out."